Toner binder and toner

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United States of America Patent

PATENT NO 9811013
SERIAL NO

14661841

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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Provided is a toner binder having excellent charging characteristics and blocking resistance, and an increased range of fixing temperatures when used as a toner. The present invention is a toner binder containing a polyester resin (P) comprising one or more types of polyester resins obtained by polycondensation of a carboxylic acid component (x) and an alcohol component (y), wherein at least one type (P1) of (P) contains 50 to 95 mol % of a aliphatic diol (y1) having a carbon number of 2 to 4 in the alcohol component (y), and (P) satisfies expressions (1) and (2).

description='In-line Formulae' end='lead'11.5≦SP value [(cal/cm3)1/2] of (P)≦13.0  (1)description='In-line Formulae' end='tail'

description='In-line Formulae' end='lead'5.2≦HLB value (by Oda method) of (P)≦7.1  (2).description='In-line Formulae' end='tail'

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Patent Owner(s)

Patent OwnerAddress
SANYO CHEMICAL INDUSTRIES LTD11-1 IKKYO NOMOTOCHO HIGASHIYAMA-KU KYOTO-SHI KYOTO 605-0995

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Honda, Masaru Kyoto, JP 43 413
Iwagoe, Yuya Kyoto, JP 6 8

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